[Bug 65988] New: [HSW] "More than 8 outputs detected" before entering run level 3

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=65988

          Priority: medium
            Bug ID: 65988
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: [HSW]  "More than 8 outputs detected" before entering
                    run level 3
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: major
    Classification: Unclassified
                OS: All
          Reporter: yangweix.shui at intel.com
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: DRM/Intel
           Product: DRI

Created attachment 81143
  --> https://bugs.freedesktop.org/attachment.cgi?id=81143&action=edit
dmesg: "More than 8 outputs detected" error message

Environment:
-----------------------
Kernel: (drm-intel-next-queued)04c23c6203954cc38a34c86b4dd0686a1b1a53de
Some additional commit info:
Author: Paulo Zanoni <paulo.r.zanoni at intel.com>
Date:   Wed Jun 12 17:27:30 2013 -0300

    drm/i915: rename intel_dp_destroy to intel_dp_connector_destroy


Description:
-----------------------
Just boot up one HSW machine, without any display port connected, the error
messages "More than 8 outputs detected via ACPI" will be clearly seen in dmesg.
I have tried -next-queued and -fixes kernels, all have this issue. I also test
it on many old kernels, and this issue reproduced. All of our HSW platform have
this problem. I test other platforms just like IVB,ILK; and there's not this
issue. 

There's a related Internal Bugzilla bug:
bug #769 : [HSW ULT C4] "More than 8 outputs detected" before entering run
level 3

Reproduce steps:
----------------
1. without display port connected
2. Boot HSW machine to init 3 run level
3. dmesg | grep -i "8 output" 

Current result:
----------------
We are getting the following error by booting to level 3

[    1.849066] i915 0000:00:02.0: More than 8 outputs detected via ACPI

Expected result:
----------------

DUT need to boot to init 3 without any error message.

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